Majority of GOP wants a new candidate

1/9/12 6:59 PM EST

I'm not sure the staff of the Weekly Standard, on its own, is large enough to explain this CBS poll:

The survey finds that 58 percent of Republican primary voters want more presidential choices, while just 37 percent say they are satisfied with the current field. The percentage of Republican primary voters that wants more choices has increased 12 percentage points since October. ...

In this national survey, taken after Romney's narrow victory in the Iowa caucuses, the former Massachusetts governor leads the field - though he holds just 19 percent support. Only 28 percent of GOP primary voters say they've made up their mind, and just 20 percent who've made a choice strongly favor their candidate.

It's mathematically possible for another candidate to enter the race as late as early February and still win enough delegates to take the nomination, though some deadlines for candidates to get on state ballots have already passed, including those in delegate-rich Virginia and Illinois. A late entry into the GOP race would come with potentially-overwhelming obstacles, including the need to instantly build a national campaign apparatus and do the hard work of getting on state ballots in an extremely compressed time period.